Re: slow speed between ftp server and client
- From: "Ron Lowe" <ron-msng@{d.e.l.e.t.e}lowe-family.me.uk>
- Date: Thu, 21 Jul 2005 15:57:21 +0100
<jameshanley39@xxxxxxxxxxx> wrote in message
news:1121953816.632524.116230@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
>
> Ron Lowe wrote:
>> <jameshanley39@xxxxxxxxxxx> wrote in message
>> news:1121898349.765926.280070@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> > my ftp server is in britain, and my friend is connecting in the USA.
>> > We are getting speeds of 14KB/s
>> >
>> > We both have broadband, we should be able to get at about 64KB/s, or at
>> > least 30KB/s, what we have seems very slow.
>> > These numbers i'm itnerested in are throughput.
>> >
>> > tracert only shows latency, not throughput. similarly with pathping.
>> >
>> > Is there any prog that shows throughput?
>> > how can I diagnose what is slowing this down?
>> >
>>
>>
>> Broadband connections are Assymetric.
>> That is to say, the upload speed is less than the download.
>> This will be the limiting factor.
>>
>> For example:
>> UK ADSL typically uas an upload of 256Kbit/sec, even if you have 2Mbit
>> down.
>> This will limit your FTP upload to around 30KBytes/sec.
>>
>> An upload rate of 128Kbit /sec will give you around 15Kbytes/sec.
>>
>> You need to determine the supposed upload speed of your connection.
>>
>> Also, any other concurrent upload will throttle back the FTP speed.
>> For example, if 2 FTP users were uploading, or if you have a
>> P2P filesharing app running at the same time.
>>
>> If you determine that you should be getting more than you are,
>> then you need to see where the bottleneck is.
>>
>> Try connecting from another user on the same ISP.
>> Ths will determine if the bottleneck is within your ISP or externally on
>> the
>> Internet.
>>
>
>
>
> my upload speed is 32MB/s.
Really?
I presume that's a typo, and you mean 32KB/s?
What ISP and product are you using?
I'd expect 256Kbit/sec, giving around 30KBytes/sec.
That's what you get from most ADSL ISPs in the UK.
>But this guy is downloading from me, so I
> don't think upload is important.
Sure it is.
His download is your upload.
The bottleneck is how fast you can push the data up to the
Internet, not how fast he can pull it down.
> Besides, 14KB/s is clearly slower
> than expected.
>
Perhaps.
A saturated upload at your end will give around 30KB/s total, shared amongst
all your uploads.
Is anything else uploading too?
> I do not know another user at my ISP , how should I do this test?
>
Try a speed tester which is reasonably local.
http://www.adslguide.org.uk/tools/speedtest.asp
Stop all other Internet activity whilst you run the test.
Look at your upstream speed
Is it what you expect?
--
Best Regards
Ron Lowe
MVP - Windows Networking
.
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